Cosmology Without Dark Energy: MIND Framework Predictions for the Accelerating Universe

This work presents a cosmological framework derived from the MIND (Momentum in Inertial and Non-Inertial Dynamics) approach, in which the observed accelerated expansion of the universe emerges from momentum-induced frame evolution rather than from a cosmological constant or dark energy component. Within MIND, spacetime curvature and dynamical response are governed by the density of organized momentum rather than by energy density alone. In the cosmological regime, where momentum densities remain far below the universal coherence threshold \pi_0, the resulting expansion is smooth, linear, and non-singular. Apparent acceleration arises naturally from evolving reference frames driven by large-scale rotational and translational momentum distributions, eliminating the need for repulsive energy or vacuum pressure. This formulation addresses several long-standing cosmological issues, including: • The cosmological constant problem • The coincidence problem • Tensions in Hubble parameter measurements without introducing exotic fields, fine-tuned parameters, or additional matter components. The framework is shown to be consistent with galactic-scale and compact-object predictions previously developed within MIND, providing a unified momentum–geometry interpretation across astrophysical and cosmological scales. Observable consequences and potential tests distinguishing this approach from ΛCDM are discussed. This document is intended as a theoretical foundation and predictive framework, inviting further numerical, observational, and relativistic extensions.